linux-kernel - [PATCH 04/13] xtensa/irq: use seq_put_decimal_ull

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20241108161255.9671-1-00107082@163.com>
Date: Sat,  9 Nov 2024 00:12:55 +0800
From: David Wang <00107082@....com>
To: chris@...kel.net,
	jcmvbkbc@...il.com
Cc: linux-kernel@...r.kernel.org,
	David Wang <00107082@....com>
Subject: [PATCH 04/13] xtensa/irq: use seq_put_decimal_ull_width() for decimal values

Performance improvement for reading /proc/interrupts on arch xtensa

Signed-off-by: David Wang <00107082@....com>
---
 arch/xtensa/kernel/irq.c | 2 +-
 arch/xtensa/kernel/smp.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c
index b1e410f6b5ab..c4f46989f9b7 100644
--- a/arch/xtensa/kernel/irq.c
+++ b/arch/xtensa/kernel/irq.c
@@ -58,7 +58,7 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 #if XTENSA_FAKE_NMI
 	seq_printf(p, "%*s:", prec, "NMI");
 	for_each_online_cpu(cpu)
-		seq_printf(p, " %10lu", per_cpu(nmi_count, cpu));
+		seq_put_decimal_ull_width(p, " ", per_cpu(nmi_count, cpu), 10);
 	seq_puts(p, "   Non-maskable interrupts\n");
 #endif
 	return 0;
diff --git a/arch/xtensa/kernel/smp.c b/arch/xtensa/kernel/smp.c
index 94a23f100726..71ec9eced8b9 100644
--- a/arch/xtensa/kernel/smp.c
+++ b/arch/xtensa/kernel/smp.c
@@ -453,8 +453,8 @@ void show_ipi_list(struct seq_file *p, int prec)
 	for (i = 0; i < IPI_MAX; ++i) {
 		seq_printf(p, "%*s:", prec, ipi_text[i].short_text);
 		for_each_online_cpu(cpu)
-			seq_printf(p, " %10lu",
-					per_cpu(ipi_data, cpu).ipi_count[i]);
+			seq_put_decimal_ull_width(p, " ",
+						  per_cpu(ipi_data, cpu).ipi_count[i], 10);
 		seq_printf(p, "   %s\n", ipi_text[i].long_text);
 	}
 }
-- 
2.39.2